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FPGA Implementation of VME System Controller (VME 시스템 제어기의 FPGA 구현)

  • Bae, Sang-Hyun;Lee, Kang-Hyeon
    • The Transactions of the Korea Information Processing Society
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    • v.4 no.11
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    • pp.2914-2922
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    • 1997
  • For FA (factory automation) and ATE (automatic test equipment) in the industrial area, the standard bus needs to increase the system performance of multiprocessor environment. VME(versa module european package format) bus is appropriated to the standard bus but has features of small package and low board density. Beside, the density of board and semiconductor have grown to become significant issues that affect development time, project cost and field diagnostics. To fit this trend, in this paper, we composed Revision C.1 (IEEE std. P1014-1987) of the integrated environment for the main function such as arbitration, interrupt and interface between, VMEbus and several control modules Also the designed, VME system controller is implemented on FPGA that can be located even into slot 1. The control and function modules are coded with VHDL mid-fixed description method and then those operations are verified by simulation. As a result of experiment, we confirmed the most important that is the operation of Bus timer about Bus error signal should occur within $56{\mu}m$, and both control and function modules have the reciprocal operation correctly. Thus, the constructed VHDL library will be able to apply the system based VMEbus and ASIC design.

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The Relationship of Dysfunctions Degree, Daily Living Activity, Depressiveness and Quality of Life among the Elderly Suffering from Stroke (뇌졸중 노인의 기능장애 정도, 일상생활 수행능력, 우울과 삶의 질 간의 관계)

  • Park, In-Sook;Kim, Do-Yeon;Kang, Chang-Yeol
    • The Korean Journal of Health Service Management
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    • v.5 no.2
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    • pp.173-186
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    • 2011
  • The purpose of this study was to know dysfunctions degree, daily living activity, depression and quality of life among stroke elderly person; and to know what kind of factors affecting to quality of life of the stroke elderly person; after that provide a fundamental data to nursing arbitration plan about increase height quality of life of the stroke elderly person. The study subjects were collected 119 people, over than 60 age, who were diagnosed with stoke in D hospital, living in B city. The data was collected by using personal interviews and questionnaire, from Nov 2008 to Jan 2009. The questionnaire were Pre-Stroke MRDS(Modified Rankin Disability Scale), Barthel-ADL(Activities of Daily Living), K-IADL(Korean-Instrumental Activities of Daily Living), GDS-15(Geriatric Depression Scale-15-question form) methods. The pre-stroke MRDS was appeared a functional obstacle. The mean score of activity of daily living was 18.24 which showed the subjects were mildly disabled, the score of instrumental activities of daily living was 7.94 which showed the mildly abled, and score of depressiveness was 7.41 which showed the subjects were mildly depression. There was a significantly correlation among MRDS, ADL, IADL, depressiveness and quality of life. Through these study result, important to check the old subjects' depressiveness, cognitive functions, daily living abilities, dysfunctions degree to main tain their quality of life.

다중프로세서 컴퓨터시스템을 위한 버스중재 프로토콜의 성능 분석 및 비교

  • 김병량
    • Proceedings of the Korea Society for Simulation Conference
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    • 1992.10a
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    • pp.2-2
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    • 1992
  • 최근 여러 분야에서 컴퓨터의 용도가 확산되고 더 높은 computing power에 대한 요구가 증가함에 따라, 컴퓨터의 성능을 향상시키기 위하여 프로세서의 고속화와 함께 시스템 구조의 개선을 위한 많은 연구가 진행되고 있다. 한 시스템내에 여러 개의 CPU들이 존재하는 다중프로세서 시스템(multiprocessor system) 구조를 가진 슈퍼미니급 중형 컴퓨터들은 상호연결망으로서 버스(bus) 방식을 많이 채택하고 있다. 버스 구조는 하드웨어가 간단하여 구현이 용이하지만, 여러 개의 시스템 지원들(프로세서들, 기억장치 모듈들 및 입출력 모듈들)이 버스를 공유하기 때문에 경합으로 인한 지연 시간이 발생하게 된다. 이러한 지연 시간으로 인한 성능 저하를 개선하는 방법으로는 버스 수의 증가와 최적 통제 프로토콜의 설계가 있다. 본 연구에서는 여러 개의 버스를 가진 다중프로세서 시스템에서 4가지 대표적인 버스 중재 프로토콜들에 대해 성능을 분석, 비교하여 최적 프로토콜을 제시하고자 한다. 이러한 대규모 하드웨어에 의하여 구현되는 시스템에서 주요 설계 요소들에 따른 시스템 성능 분석과 비교는 설계 단계에서 필수적인 과정이다. 그러나 하드웨어를 만들어서 분석하는 방법은 시간과 비용이 많이 소요되기 때문에 소프트웨어 시뮬레이션 방법이 널리 사용되고 있다. 본 연구팀에서는 시뮬레이션 전용언어인 SLAM II를 이용하여 다중프로세서 시스템의 시뮬레이터를 개발하고, 버스중재 프로토콜(bus arbitration protocol)을 용이하게 변경할 수 있도록 하여 각각의 성능을 비교하였다. 이 연구에서 비교된 프로토콜들은 고정-우선순위 방식(fixed-priority scheme), FIFO(first-in first-out) 방식, 라운드-로빈 방식(round-robin scheme), 및 회전-우선순위 방식(rotating-priority scheme) 등이다. 실험은 시스템의 주요 요소들인 프로세서와 기억장치 모듈 및 버스의 수들을 변경시킴으로써 다양한 시스템 환경에 대한 분석을 시도하였다. 작업 부하가 되는 기하장치 액세스 요구간 시간가격(inter-memory access request time interval)은 필요에 따라서 고정값 또는 확률 분포함수를 사용하였다. 특히, 실행될 프로그램의 특성에 따라 각 프로토콜의 성능이 다르게 나타날 수 있음을 검증하였으며, 기억장치의 지역성(memory locality)에 대한 프로토콜들의 성능도 비교하였다.

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The Aim to Provide Information of the Carrier for Dangerous Cargo in International Maritime Transportation (국제해상운송에서 위험화물에 대한 운송인 정보 제공 방법에 관한 연구)

  • Hwang, Ki-Sik;Jeong, Keum-Sun
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.23 no.7
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    • pp.881-888
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    • 2019
  • Dangerous cargo in maritime transportation is increasing in international trade. The types and forms of dangerous cargo are very diverse, complex, and the scope is expanding widely. For this reason, it is increase risk of accident threatens the safety of ships and other cargoes, as well as serious damage. Carriers' require special care and handling of dangerous cargo and have a duty of care for safe transport. The shipper is obliged to notify the carrier of the nature and characteristics of the dangerous cargo prior to loading on the ship, the responsibility of the carrier varies depending on the notification or not. This study compares and analyzes the concept and classification of dangerous cargoes, the provisions of the Hague rules, Hamburg Rules and Rotterdam Rules about Carriers' Dangerous Cargo Liability Regulations, after reviewing case studies. We intend to provide information to dangerous cargo handling, the carrier.

Improvement of Management of Long-Term Care Facilities Through FGI (FGI를 통한 노인장기요양시설 운영 개선 방향에 관한 연구)

  • Park, Sung Won;Lee, Won Jae
    • The Journal of the Korea Contents Association
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    • v.19 no.1
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    • pp.587-597
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    • 2019
  • With the rapid aging of the nation's population and the increasing number of elderly people with difficulties in daily life, the elderly care system was implemented for social solidarity. Structural problems in the long-term care system that emerged after the introduction of the system are demanded, and the problem of functional readjustment between nursing hospitals and facilities is raised due to the lack of continuity of care for the elderly by institutional and salary types. In this study, we set up research problems related to personnel, staff, and services to address the problem and conducted FGI. Research has shown that the number of elderly and recognized people in the region, the number of elderly and elderly patients, needs to be reflected in long-term care demand, the direction of appropriate institutional and manpower supply policies, and the establishment of local government goals and plans to strengthen the long-care institutions. It was revealed that non-medical accident arbitration bodies are needed to apply the cost of food insurance, provide programs through links with relevant institutions, and manage the admission smoothly.

Andropause Symptoms, Stress, Self-esteem and Quality of Life among Middle-aged Men (중년 남성의 갱년기 증상, 스트레스, 자아존중감 및 삶의 질)

  • Kim, Bo Ra;Sung, Kyung Mi
    • Journal of Digital Convergence
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    • v.16 no.12
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    • pp.467-475
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    • 2018
  • The purpose of this study is to investigate the relationship andropause symptoms, stress, self-esteem and quality of life among middle-aged men. The data were collected from Jun to August 2017. The subjects were 40 to 60 year old males residing in Y city and 198 questionnaires were analyzed. A menopausal man's quality of life was significantly different according to final education, monthly income, exercise status, the scores of quality of life was negatively correlated with those of andropause symptoms and stress, but positively correlated with those of self-esteem. The result of adding six variables that have significantly different quality of life, factors influencing quality of life are self-esteem, stress, andropause symptoms, monthly income and analysis result, explaining 52.3% of the variance. Therefor, The results of this study through repeated research in the future, it will contribute to the development and application of a nursing arbitration program to improve the quality of life for men in menopause.

Does the Application Transcranial Direct Current Stimulation and Visual Perception Program Enhance the Visual Perception Function and ADL Performance of Dementia Patients (경두개 직류자극 및 인지훈련 프로그램 적용이 치매환자의 인지기능, 시지각 및 일상생활활동에 미치는 영향)

  • Kim, Ko-Un;Kim, Bo-Ra;An, Tae-Gyu
    • Journal of The Korean Society of Integrative Medicine
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    • v.9 no.4
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    • pp.201-210
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    • 2021
  • Purpose : There is a lack of research on this field in the Republic of Korea, especially those that have seen the effect of interaction between transcranial direct current stimulation and computerized cognitive rehabilitation therapy. This study divided 30 dementia patients into a treatment group, which received transcranial direct current stimulation and computerized cognitive rehabilitation, and a control group, which received pseudo-transcranial direct current stimulation and pseudo-computerized cognitive rehabilitation. This study evaluated the effects of these treatments on the visual perception, cognition functions, and daily activities of dementia patients. Methods : Fifteen subjects were allocated to the treatment group and the other 15 subjects were allocated to the control group. Treatments were given at intervals of five sessions per week (30 minutes per session) for six weeks (30 times in total). This study used the Neurobehavioral Cognitive Status Examination (NCSE) to examine cognitive functions, MVPT to evaluate visual perception, and FIM to test daily living activities before and after applying the treatments. Results : The results of this study showed that cognitive functions, visual perception, and daily living activities significantly (p<.05) improved after the intervention in the treatment group and the control group. The changes in cognitive functions, visual perception, and daily living activities due to the treatments were significantly different between the groups (p<.05). Conclusion : The results indicated that transcranial direct current stimulation and computerized cognitive rehabilitation therapy improved visual perception and daily living activities by increasing cognitive functions. Consequently, it was found that the simultaneous application of transcranial direct current stimulation in conjunction with a computerized cognitive rehabilitation program was an intervention method that could positively affect the visual perception, cognitive function, and daily living activities of dementia patients. Based on the results of this study, the study of arbitration protocols for demential will have to be more active.

Implementation of a Blockchain-based Talent Trading Platform to Reduce Transaction Costs (거래 비용 절감을 위한 블록체인 기반 재능거래 플랫폼)

  • Yang, Seonghun;Jin, Hoe-Yong;Kim, Sang-Kyun
    • Journal of Broadcast Engineering
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    • v.25 no.6
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    • pp.922-934
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    • 2020
  • The talent trading platform is a platform that brokers transactions such as program coding, media content production (video, music, presentation materials, etc.), design, learning, and repair. Existing talent trading platforms provide a server-client model-based service, which incurs server operating costs and arbitration labor costs for transactions, which has a disadvantage that users bear high service fees. This paper proposes a method to reduce server and database operation costs by uploading transaction information to blocks through the system as a distributed app (dApp) based on the Ethereum platform. In addition, it proposes a method to lower transaction fees by reducing the labor cost of transaction arbitrators through smart contracts. Compare and analyze the cost processing procedure and transaction fee size of the blockchain-based talent trading platform and the existing talent trading platform.

The effect of motor learning in children with cerebral palsy: A systemic review (뇌성마비 아동의 운동학습 효과 체계적 고찰)

  • Kim, Jung-Hyun
    • Journal of Korean Physical Therapy Science
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    • v.28 no.1
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    • pp.33-45
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    • 2021
  • Background: Children with cerebral palsy have difficulty acquiring motor skills through motor learning due to lack of motor planning of the central nervous system and musculoskeletal dysfunction. Motor learning is the acquisition or modification of movements with the aim of developing skilled movements and behaviors. Cerebral palsy improve motor function through motor learning, and effective motor learning mainly depends on practice parameters such as learning feedback. Therefore, we investigate the effect of motor learning in children with cerebral palsy and try to present the possibility of clinical application. Design: A systemic review. Methods: Research papers were published from Jan, 2010 to Dec, 2020 and were searched using PubMed and Medline. The search terms are 'task specific training' OR 'motor learning' OR 'feedback(Mesh term)' OR 'goal activity' AND 'cerebral palsy(Mesh term)'. A total of eight papers were analyzed in this study. The paper presented the quality level based on the research evidence, and also presented PEDro (Physiotherapy Evidence Database) scores to evaluate the quality of design studies in randomized clinical trials. Results: The results showed that motor learning coaching in children with cerebral palsy improved motor function in post and follow up tests. Also, self-control feedback of motor learning is more effective than external control feedback. 100% external control feedback of motor learning is effective in the acquisition phase and 50% external feedback of motor learning is effective in the retain phase. Conclusion: These results suggest that it will be an important data for establishing evidence on the effect of motor learning arbitration methods in children with cerebral palsy to develop clinical applicability and protocols.

Effect of Gait Training in Chronic Hemiplegia Patients with Inducement to Vision and Rhythmic Auditory Stimulation (마비측 시야 유도 보행 훈련과 리듬 청각 자극 훈련이 만성 뇌졸중 환자들의 보행에 미치는 효과)

  • Kim, Tae-Hyun;Choi, Jong-Duk;Youn, Hae-Jin
    • PNF and Movement
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    • v.12 no.3
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    • pp.151-158
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    • 2014
  • Purpose: The purpose of the study is to see the effect of walking when training for chronic stroke patients, Affected side vision impairment induced gait training with rhythmic auditory stimulation in parallel. Methods: This study was the general walking training group, the training group was divided damage induced affected side view, affected side view damage induced by rhythm auditory stimulation training three groups. Intervention period was 4 weeks. 5 times per week, per 30 min entered arbitration. Affected Side vision impairment induced induction training was conducted by installing a red cones, rhythmic auditory stimulation was applied to a regular rhythm training using a smartphone application (Metronome). Paired t-test was performed to see the difference between each group and before the intervention. One-way ANOVA was used to find out the significance probability between each group. Statistical significance was set at 0.05 probability. Results: Regular walking group, rather than affected side vision guided walking group could see increases in the FGA and DGI (P<0.05). And vision impairment induced affected side view and rhythmic auditory stimulation induction training this group than in the combination group walking group obtained higher scores on the FGA, DGI score(P<0.05). Conclusion: If you want to enforce certain rhythmic auditory stimulation of the visual field and side damage induced during gait training for stroke patients will be able to expect a better effect.